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Jared Dains <br />South Platte Combined Replacement Plan <br />April 2, 2009 <br />Page 11 <br />7. Due to a change in administration of evaporation from ground water exposed to the <br />atmosphere prior to 1981, pre-1981 credits will no longer be allowed for gravel pits which <br />exposed ground water to the atmosphere prior to 1981 and were actively mined on or after <br />January 1, 1981. Accordingly, evaporative depletions for such gravel pits will need to be <br />replaced from the entire surface area of the ground water exposed in the pits. In order to <br />allow owners and operators of the affected pits time to comply with this change in the <br />administration requirements, the owners and operators will have until January 1, 2010 to <br />comply with the replacement requirements. If the area included in the DRMS mining permit <br />site contains individual gravel pit ponds that were not altered or mined after December 31, <br />1980, you may still be able to maintain the "pre-81" credit provided you can document when <br />mining in the individual ponds ceased. The Applicant is hereby notified that in accordance <br />with the above described change in administration, the evaporation from ground water <br />exposed prior to 1981 must be replaced after January 1, 2010 in any subsequent SWSP <br />renewal for.the gravel pits listed in Table 1. <br />8. The applicant is seeking to claim credit for water returned to the stream system from <br />dewatering in excess of the depletions caused by dewatering. Prior to claiming any credit <br />for the water returned to the stream system from dewatering the applicant must install an <br />adequate measuring device to measure the quantity of water being pumped for dewatering <br />purposes. <br />9. The installation of any device used for measuring replacement water in this plan must be <br />inspected by a Division 1 hydrographer. Furthermore, the exact location of all return <br />structures utilized in this plan must be.provided to the Division Engineer and Water <br />Commissioner in order to allow for inspections of the structures. Finally, all charts or other <br />output data associated with each measuring devices utilized in this plan must be provided in <br />a timely manner acceptable to the Water Commissioner. <br />10. The Water Commissioners responsible for the administration of this plan are Scott Edgar, <br />George Varra, Shera Sumerford and Bob Carlson. The applicant shall maintain daily <br />records of all diversions, replacements, and the amount of water used for each particular <br />purpose. The applicant shall provide a report of these records to the division engineer and <br />the water commissioners on a monthly basis on a form approved by them. The accounting <br />must be submitted within thirty (30) calendar days of the end of the month for which <br />the accounting is being made. Failure of the Applicant to provide timely accounting <br />to the water commissioners may result in revocation of this SWSP. <br />In addition, the applicant shall submit a report from each entity making replacements; for <br />this plan, those entities are the City of Westminster, City of Thornton, City of Greeley and <br />Centennial Water and Sanitation District. The report shall include an accounting of all <br />wastewater plant water effluent controlled by each entity, showing the total volume of water <br />under its control at the various wastewater treatment plants, and the amount committed to <br />each of the recipients of the water. The applicant must submit the required reports to <br />the water commissioners on a monthly basis. If the applicant does not submit the <br />required reports the SWSP cannot be administered and credit for the released <br />effluent will not be granted.